Author Topic: Raspberry pi looks like a pretty good contendor against arduino  (Read 46798 times)

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Offline Bored@Work

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #75 on: March 02, 2012, 07:02:20 pm »
Don't forget they only had 10,000 in the initial batch, with actual demand far far surpassing that :)

From what I read, both RS and Farnell had non or almost non in stock at all, the boards still being on the boat from China.

And if I get it correctly, RS didn't dare to take orders at all, just allowing to register an interest. While Farnell initially had the balls to take orders and later switched to registering an interest only. People who managed to place an order with Farnell are now complaining on Farnell's element14 that their delivery dates are pushed back to e.g. end of April. No one who could be taken serious has come forward and claimed he got a shipping confirmation.
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Uncle Vernon

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #76 on: March 02, 2012, 09:32:40 pm »
From what I read, both RS and Farnell had non or almost non in stock at all, the boards still being on the boat from China.
Here is the problem with becoming a self appointed language Nazi, eh Bored? Glass caves, stones and all that. Hmm!  :D :D :D :D
« Last Edit: March 02, 2012, 09:35:24 pm by Uncle Vernon »
 

Offline metalphreak

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #77 on: March 03, 2012, 06:11:20 am »
From what I gathered, the Raspberry Pi foundation had a batch of 10,000 made by an assembler in china. Knowing the huge demand for it, they decided to let E14/RS handle production with their own assemblers. So while E14/RS are organising new production runs, I would assume they each got allocated a share of the initial 10,000 to start selling.

Offline updatelee

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #78 on: March 05, 2012, 03:08:16 pm »
Don't forget they only had 10,000 in the initial batch, with actual demand far far surpassing that :)

From what I read, both RS and Farnell had non or almost non in stock at all, the boards still being on the boat from China.

And if I get it correctly, RS didn't dare to take orders at all, just allowing to register an interest. While Farnell initially had the balls to take orders and later switched to registering an interest only. People who managed to place an order with Farnell are now complaining on Farnell's element14 that their delivery dates are pushed back to e.g. end of April. No one who could be taken serious has come forward and claimed he got a shipping confirmation.

element14 online status shows

Expected Ship Date 13 Mar 2012

on my order, we'll have to see though

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Offline ndictu

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #79 on: March 05, 2012, 04:14:43 pm »
element14 online status shows

Expected Ship Date 13 Mar 2012

on my order, we'll have to see though

Lucky :) I'm still waiting till they get stock

 

Offline firewalker

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Become a realist, stay a dreamer.

 

Offline GeoffS

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #81 on: March 08, 2012, 04:25:49 pm »
Delayed!

Apparently the manufacturer substituted a cheaper part that the one specified on the BOM,
Part in question was the Ethernet jack,

Story here
http://www.raspberrypi.org/archives/781

 

Offline Monkeh

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #82 on: March 08, 2012, 04:34:32 pm »
Definitely cheaper, it's not even gold plated!
 

Uncle Vernon

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #83 on: March 08, 2012, 09:25:27 pm »
Delayed!

Apparently the manufacturer substituted a cheaper part that the one specified on the BOM,
Part in question was the Ethernet jack,
From a consumer point of view it's an RP fail. Nothing in the story identifies which batches are crook, which order will be fullfilled or delayed further. Blaming a component part doesn't preclude the vendor. If a component part on my BMW fails, I still have a broken BMW until repair, same applies to RP.

I'll never understand the logic in overestimating delivery in these marketing launches, sure it fans up interest but it all too often creates as many poor experiences as good ones. And we know which experiences get the most coverage.

I'm keen to have a play with a RP board, but stuffed if I can understand the general frenzy and with that the inevitable Rev 1.0 headaches for all who play.
 

Offline westfw

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #84 on: March 09, 2012, 07:24:26 am »
>> I'll never understand the logic
I'll never understand the logic of "needing" to be one of the first people to get something.
This isn't even a profit-motivated project (supposedly); there shouldn't have been so much pressure to cause screw-ups of this magnitude...

(meanwhile, I bought a pogoplug for $25.  Shipped.  In a pretty pink box, power supply and ethernet cable included.)
 

Offline GeoffS

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #85 on: March 09, 2012, 08:14:37 am »
Cheapest Pogoplug I've found is over $70  :(
 

Offline MarkS

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #86 on: March 09, 2012, 05:00:43 pm »
Internal magnetics? O.o Can someone please explain this to me?
 

Offline Bored@Work

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #87 on: March 09, 2012, 05:46:58 pm »
Magnetics is established laboratory slang for a a tiny transformer, which is required as part of Ethernet's physical interface.
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Offline westfw

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Offline metalphreak

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #89 on: March 10, 2012, 05:25:26 am »
Internal magnetics? O.o Can someone please explain this to me?

Have you ever noticed the big thick black IC on network cards just after the RJ45 socket? That is where the transformers are for the interface. These newer "MagJacks" integrate that into the socket to save space.

Offline MarkS

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #90 on: March 10, 2012, 06:14:08 am »
Have you ever noticed the big thick black IC on network cards just after the RJ45 socket? That is where the transformers are for the interface. These newer "MagJacks" integrate that into the socket to save space.

Actually, I have never really paid much attention to ethernet, other than plugging the cord into the back of my computer. Never really cared to get into networking. Thank you for the info though. It was a term I was unfamiliar with.
 

Offline armandas

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #91 on: March 10, 2012, 10:48:59 am »
Internal magnetics? O.o Can someone please explain this to me?

Have you ever noticed the big thick black IC on network cards just after the RJ45 socket? That is where the transformers are for the interface. These newer "MagJacks" integrate that into the socket to save space.

Here's a photo of one on the PCB and a couple of depopulated modules (they're not really ICs :).
 

Offline metalphreak

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #92 on: March 10, 2012, 11:58:55 am »
http://www.raspberrypi.org/wp-content/uploads/2012/03/Side-View-Mag-Type.jpg

You can just make out the four transformer windings in this x-ray from RPi.

I've never cracked one of the magnetic's "ICs" open before so thanks for sharing that pic :)

Typical Magjack internal Schematic (from a Hanrun model)
« Last Edit: March 10, 2012, 12:05:14 pm by metalphreak »
 

Offline GeoffS

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #93 on: March 10, 2012, 12:58:22 pm »
 

Offline Chasm

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #94 on: March 10, 2012, 03:15:48 pm »
Yeah, the shipping cost to Europe is definitely a bit high.
 

Offline armandas

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #95 on: March 10, 2012, 05:03:13 pm »
Anyway , is it BGA solder balls am i seeing on the screw holes that prevent the screw from scratching the board ?

I don't think they used actual solder balls there. You can see similar balls popping out of vias in planes and traces. It's weird and not something I can explain :D
 

Offline im_a_human

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #96 on: March 14, 2012, 06:54:11 pm »
I hope if i get one of these to be able to have some kind of PC based 'C' compiler so i can write my own applications with it. I would want to write some kind of boot loader for booting into my own OS from the SD card. Then the world would be at my feet. :)
 

Offline Monkeh

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Re: Raspberry pi looks like a pretty good contendor against arduino
« Reply #97 on: March 14, 2012, 07:28:52 pm »
I hope if i get one of these to be able to have some kind of PC based 'C' compiler so i can write my own applications with it. I would want to write some kind of boot loader for booting into my own OS from the SD card. Then the world would be at my feet. :)

They run Linux. You can compile C, C++, C#, D, or just about any other language you fancy right there on the device (or crosscompile from another OS if you really must) and then run the program. They are not Arduinos; they're complete Linux PCs in a palm sized device.
 

Offline burb

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Raspberry Pi
« Reply #98 on: April 26, 2012, 09:41:11 pm »
Raspberry Pi - it would be great to hear what you think of it, including

- board layout
- price
- components, manufacturing, how price is so low
- what would make different
- are you in the slightest interested by it
- opinion opinion opinion :-)

 

Offline WhyMe

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